My newest project
 

So I went trashpicking today, and came across what will be my newest project. Who needs a baja when you have one of these?

http://i263.photobucket.com/albums/i...9387526977.jpg

the conversion to electric should be fairly easy to do. The hardest part will be adapting the steering. Any thoughts?

Thats gonna be fun to drive! http://www.youtube.com/watch?v=C8KcDSqyRuM

I dont think i will be going that fast... my plan so far is to keep the stock motors, and wire one jeep to my MM running 4s And the other to a victor 883, lvc and 4s lipo. if that isnt good enough, i will rubber coat the wheels, and put direct driven CIM motors in 'em

looks like a fun project, what are you planning for the bug?

Dibs on the Bug Mike!


Your going to need to coat the tires in something. Im thinking if there is any way to make a solid axle for it, it would be the ultimate drift machine

good find! that will be a fun project.

possesion is implied dibs! too late. btw, the bug does have a solid axle drivwn by 1 motor

steel tubing will fix that.

Well, i went over ben's and we decided the best way to do the steering is with a 1/4 scale servo. we didnt have one, so we decided on this setup for the jeep.
1x MMM, 4s, connected to stock motor.

Now take that and double it for the other side as well! we set it up for a tank-drive style steering, locked the rack and pinion steering in the front and there ya have it! it is pretty fast for the tires being plastic and the ground being wet. we plan to improve on that soon. The greatest part is that the jeep just magically pivots around the rear wheels! will post pics and vids as soon as they upload

SORRY ABOUT THE BLURRY PICS. BEN WOULDN'T STOP MOVING THE JEEP!


http://i263.photobucket.com/albums/i...s/SSPX0497.jpg

http://i263.photobucket.com/albums/i...s/SSPX0496.jpg

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Hahahahaha! Nice burnouts man! You should try and build some real tracks for it. That would be sweet.

haha. some people put little kid bike tires and trim the sidewalls and pressfit them over the plastic wheels

Thats awesome. Any future plans or are you guys just playing around?

Were serious, we need to devise some sort of steering, we will probably run the drive motors off 1 MMM and then maybe a motor turning the steering wheel with another.


If we had some traction this thing would fly!

so far, our 2 major ideas for steering is to get a 1/4 scale servo and plug it into the rack n pinion type steering, or use this motor we have, with a belt that will go around the steering wheel of the jeep. http://banebots.com/p/M4-R0062-12

so its basically pay 25 bucks, and have alot of fun mounting a servo in the middle of nowhere in the jeep, or rig the motor idea, which probably will not be very reliable.

What a day this has been for the R/C Barbie Jeep! Me and Ben went to the newly found LHS, picked up a 1/4 scale futaba s5050 servo, some spraypaint from lowes, and got right to work with the jeep... we drilled a new hole in the steering rack for the servo, mounted the servo nearby on the body, with a custom made servo arm with a slot for the pin to move in. we then cut up some old bike tires, and then screwed them into the plastic wheels for alot more traction. It took us from 4:30 til 7:30 to do everything but treading the front tires... we played with it for a half hour, then ben left, then I finished the front wheels, and a few other minute details, and played with it for another half hour. The batteries still have 3/4 charge in em too!

http://i152.photobucket.com/albums/s...414091637a.jpg

http://i152.photobucket.com/albums/s...0414091952.jpg

http://i152.photobucket.com/albums/s...0414091928.jpg

http://i263.photobucket.com/albums/i...s/SSPX0524.jpg

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So Me and ben were talking, and we have decided that we want faster than what we have now, since according to Brian's speedcalc, it tops at 8mph... 8mph just isn't fast enough for us, so we are devising a plan to speed things up a little bit. we decided to take the CIM motor and gearbox we have, get the gear set from banebots needed to make it a 9:1 ratio, get a pair of sprockets for the shaft and the new solid axle. to mount it we will beef up the mounting for the stock gearboxes with all the gears removed except the output gear, which we will adapt to the axle. Hopefully if the CIM doesn't rip everything apart we will get up to 35mph!
http://i263.photobucket.com/albums/i...heelsplan2.png

http://i263.photobucket.com/albums/i...ds/PWspeed.png

Pretty cool. Have you run it outside yet?

Yes, and the first time I floored it- it flipped mike right off :lol:

Hahaha! I don't know who Mike is, but that's funny! :neutral: :lol:

Eovnu87435ds
:lol:

Ahhhh, now I see. :smile:

OK, you guys can stop yelling at me! I finally have outside videos of this running! its not the greatest though. It was raining, so I just put the camera in my room next to me and taped. As you can see, there are some issues with steering that we gotta work out...

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Attention RC-Monster users: I decided to create my own website for the barbie jeep project in order to seek sponsors as well as building a showcase for my resumé. Anyways, I will be making updates there, so you could either subscribe to the RSS feed or check here, as I will post in this thread when there is an update.

Check it out and post a comment!

http://web.me.com/eovnu87435ds/barbiejeep/Welcome.html

Just a quick update with some pics, We have a solution for the servo problem drawn up in 3d, and we bought an electric scooter to use the 500w motor out of at a garage sale today. for more info and pics click here.

http://web.me.com/eovnu87435ds/barbi...ations....html

Just thought I'd throw this out their- http://electricscooterparts.com/motors.html

Ive ordered a few things from their. Very fast shipping and the prices are great aswell.

Mike, you need to stick a large stuffed animal in that jeep and go play in traffic with it.... That would be funny, especially if a semi ran over it!

I guess "playing with girl's toys" is something you could put on a resume... Not sure if I would!

To Ryan and Linc... We as it stands its geared for 35mph... and we plan to take it up the street a few times...


We also got a 550w scooter motor already from a schwinn scooter that was had for 20 bux :)
http://i152.photobucket.com/albums/s...0426090844.jpg

playing with girls' toys wasn't what I was looking at, but with internships from lockheed martin coming my way, this sort of stuff can show that I didn't choose to go into engineering for nothing, and the experience here shows it.

You guys should look at some Krylon matte black. Absolutely sick color IMO.

already beat you to that also takedown...


Its already been painted black and silver

for all of those who didn't see yet, I posted an update to the blog last night. Today me and ben will continue on mocking up how we will mount the motor, as well as reinforcing the plastic chassis around the motor compartment. One thing that is stalling our progress are the wheels. we definitely need new wheels, but it is rather hard to find them. If anybody knows where to buy some, or even donate to us (please! you will get something put on the jeep!) please post! we need 4 fairly light wheels, around 15" total diamater including the tires, and two of them must have a keyed hub or something similar to that so that we can have them driven. For the hub diamater, we would prefer either 3/8" or 3/4".

Any help is greatly appreciated!

http://web.me.com/eovnu87435ds/barbiejeep/Welcome.html

UPDATE: IT LIVES! It just went out for it's maiden voyage today! we ran it for about 5 minutes or so, then the mass of zipties broke and the chain popped off the sprocket. The setup is as follows:

NeuEnergy 4s 5000mAh 25c sending power to 2 speed controllers, and the headlights. The headlights has 2 switches in parallel. A dashboard switch, and a momentary switch actuated by a servo in 3rd channel. This lets the headlights be turned on remotely or by a manual switch. The speed controllers are a IFI Victor 883 30v brushed controller, powering a 540watt razor scooter motor I found at a garage sale. This motor is in a custom mount welded/fabricated by ben (brushlessboy16) and is driving the solid rear axle by 25 chain. The steering is using the stock drive motor and transmission, powered by a Victor 884 speed controller. The outdrive of the 147:1 transmission has a ton of torque for steering power, and has a piece of allthread on it, for steering. Since I do not have what i need to make it auto centering and limited steering, We just ziptied it to the steering bar, so if me or ben were to oversteer, it would snap the zipties and not break anything else.

for wheels, in the rear we have 13.5"x4" pneumatic wheels from tractor supply, and the fronts have 13.5"x1.5" There is only 1 pic and video of tonight, as we do have finals tomorrow... but stay tuned for more!

http://i152.photobucket.com/albums/s...0616092158.jpg

http://i152.photobucket.com/albums/s...0616092308.jpg

The final setup will have a vex robot controller in it. I will have my DSM Rx plug into the controller, and the controller will interpret the signals, and give me throttle and lights exactly as i had it, but also let me code for an auto-returning steering control, just like an actual RC will have, but with a powerful motor in there with a 10K ohm potentiometer on the output. I wrote up a version one of the code, that I will test once I get the controller.

http://i263.photobucket.com/albums/i...epcodeV1-0.png

Here is a running video!!!!!

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Also, click here to see all the pics and a full update!!!

http://web.me.com/eovnu87435ds/barbiejeep

WAY cool Mike. Great work.

Hey!:lol:

...and Ben. :lol:

new update with the barbie jeep, we got it to run great! only problem now is we puffed a lipo... read more about it here

http://web.me.com/eovnu87435ds/barbi...t_A_Break.html


also, you can subscribe to the RSS feed here:
http://web.me.com/eovnu87435ds/barbiejeep/Blog/rss.xml